Loom



B. C. GOODMAN LOOM June 9, 1931.

Filed Jan. 27, 1928 2 Sheets-Sheet 2 INVENTOR ENso/v (2mm/w Gana/ VMM ATTORNEY Patented June 9, `1931 uN-rift..lr STATES BENSON' GLFFORD-GOODM'AN, OF FAR RQCKAWAY, NEW'l YORK LOOM ,appncama filed January 27, i928. serial N o. 250,965.

This invention relates to improvements in filling detectors for looms.

My invention has, for its objectfto provide an attachment for the shuttle to detect when the filling is running out on the quill intime to change the latter Ain an automatic magazine or if the loom is without theautomatic magazine to stop the operation just before the illing runs out to eliminate the necessity of the weavers finding the pick.

I accomplish this object by means of adevice hereinafter described, and set forth in the claims, and illustratively exemplified in the accompanying drawings, in which, Figure 1 is a plan view of a shuttle havingmy improved detector embodied therein; Figure 1 2 is an inside plan View of one wall of the shuttle showing the detector in detail; Figure 3 is a substantially longitudinal sectional view of the shuttle and detector taken on lines 3 3 of Figure 2 Figure 4 is a modification of the detector and its connection with the loom; and Figure 5 is a sectional view of the same.

It might be mentioned here that the present invention is merely for the purpose of translating the running out of the yarn on a quill into a mechanical motion for the purpose of effecting the operation of the loom stopping device orautomatic magazine.

Referring now to the drawings, 10 denotes a shuttle of any well known design `adaptedto receive and carry a bobbin 11 which is held in position by suitable bobbin clips 12 arranged in one end of the bobbin opening 13 in the body of the shuttle. The yarn 14 is wound upon the bobbinV 11 in the usual man,- ner, care being taken to provide a reserve of any number of picks or portions of picks desired to be left on the bobbin at the time of 0 indication for transfer in order to enable the shuttle to return to the magazine end of the lay without breaking the strand, or detecting the end if not a magazine loom.

The detector comprises a shoe 15 pivoted or hinged at one end on a pintle 16 which is supported normally in upright position between a pair of ears 17 projecting from one end of a plate 18. The plate 18 is xed on the wall of the shuttle 10 and extends from the top to the bottom of the wall in a position closely adjacentto bobbin clips 12,-as illustrated particularly vin Figure 2. Suitable wood screws 19 are used to mount the plate 18 on the shuttle wall. The shoe 15 itself c y comprises a plate rounded at its sides to present a smooth rounded surface to bear upon the yarn or vfilling 14 at the end of quill or cap; The shoe 15 is constantly urged in the direction of the lling by a spring 20, shown 3 in Figure 3, At its eXtreme free endthe shoe 15 carries a metal `contact fingerY 21, which yis mounted on the inside of the shoe and projects towards the outside of the shuttle 10 through an opening 22 therein, and which makes electrical contact with a second f olate 23 mounted on the inner face of the shuttle wall. yThe plate 23 is disposed parallel to the first plate'18, is attached tothe wall by screws 24 and is of a length to project substantially halfway'the height of the bobbin wall. One side ofthe plate 23 projects over about one half of the opening 22,'so that when the yarn 14 has run out the shoe 15 will have moved away from the shuttle wall under in.- fluence ofthe spring'20, and thefnger 21 75 will have been brought'into contactwith the plate 23. In order that the contact finger 21 and platel 23 may open or close an electric circuit for operating a magnet or other de-r K vice, I provide the shuttle box 2 5, whichon a magazine loom is the plain side, with an opening or slot 261 in each lateral flange thereof. The slots 26-open toward the shuttle path and each is provided with an insulating lining 27 in a metal box, in a wood box S5 the wood itself acts as insulation, and a pole pin 28 projecting -in an upright direction through a tube of insulation 29 to theA outside of'the shuttle box 25, rFhe portions of the pole pins 28 bridging the slots 26 carry one end of contact brushes 29. The brushes 29 vare made of yieldable metalstrips andthe free ends project outwardly through the slots 26 and` into the shuttle path. The circuit contacts between the brushes 29 and the .95 plates 18` and 23 of the shuttle 10 are made through projections '30 and 31 of the plates 18 and 23, respectively, the projections being I embedded in the `wall of shuttle and proj ected for a'considerable 'distance toward the rw y tromagnet 32'through a circuit 33, and battery 34 or other source of energy, the armature 35 of the magnet 32 being utilized to operate any of the devices now being employed. either to stop the loom orto set an automatic magazine into operation. Contacts may be on either or both sides of thebox or top or bottom or any combination thereof, the shuttle Wiring being made to correspond. A switch is used in combination with the loom shipping device so thatY when the loom is idle the current is turned off.

Referring now to Figure l, the shoe l5 is provided with a lever projection 36 which operates through an opening 37 in the Wall of' the shuttle 10. The outer end of the lever 35 as the yarn is used up projects farther ut until at a point when the filling is running out, the lip of the lever is beyond the shuttle Wall and comes into contact with a trip 38 carried by the shuttle box 25 on the side away from the reed; The trip 88 is illustrated in a conventional figure in the drawings, the invention being to a means for imparting usable motion from the shuttle which may be used to either stop the loom or operate the automatic magazine as desired.

It is preferable of course that in setting up the present detector the latter Will detect the running out of lling at a point in the operation of the loom just before the yarn on the quill is exhausted, thereby bringing the loom to a stop onthe same pick on Whicl detection occurs. The same arrangement used With an automatic magazine is connect ed with the latter which is brought into operation and a transfer made two picks later or at such a time, when colors are employed, the box chain will bring the indicated color, i. e. the quill ruiming at time of detection, for transfer again.

Indication may occur on front center or any other desired positions of the cranky shaft. l

Having now described my invention and the manner in which the same operates, What I claim and desire to secure by Letters Patent is:

1. In a loom, the combination of a shuttle box and a shuttle, a yarn iilled bobbin arranged in said shuttle, a detector disposed longitudinally of the bobbin andpivoted at one end in said shuttle and provided with a rounded nose yieldably urged towards the bobbin and into constant contact with the exterior of the yarn on the bobbin, an electrical contact carried in the shuttle and completed When the yarn is exhausted from the bobbin and the detector contacts with the said contact, and an electric circuit including an electromagnct controlled by said contact and position of the detector.

2. A, detector for a shuttle used in a loom, comprising a pivoted at one cnd metal shoe disposed longitudinally of the shuttle and provided With a. rounded nose yieldably towards the bobbin and urged into contact With the exterior of the lling in the shuttle, spaced plates embedded longitudinally in said shuttle and exposed at one side thereof, one plate being electrically connected With the shoe, a contact member at the free end of the shoe and movable into contact With the second plate when the filling is exhausted to provide an electrical conductor from one plate to the other;

3. A detector, as claimed in claim 2, including shuttle box to slidably receive and guide the shuttle, and brushes mounted longitudinally in the shuttle box and arranged to contact with the said plates, respectively, to form an electrical connection.

In testimony whereof he has aiiiXed his signature.

BENSON CLIFFORD GOODMAN.

Cri 

